Home / 38,810.40-58,215.60-11,108.40

Finding the Fourth Proportional to 38,810.40, 58,215.60 and 11,108.40

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Solution

The fourth proportional to 38,810.40, 58,215.60 and 11,108.40 is: 16,662.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,810.40 : 58,215.60 = 11,108.40 : x
  2. Step 2: Convert to fraction form
    38,810.40/58,215.60 = 11,108.40/x
  3. Step 3: Cross multiply
    38,810.40x = 58,215.60 × 11,108.40
  4. Step 4: Simplify right side
    38,810.40x = 646,682,171.04
  5. Step 5: Solve for x
    x = 646,682,171.04/38,810.40
  6. Step 6: Final answer
    x = 16,662.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.